How to solve the problem of garden cart wheel rims bearing damage during long-term use

Garden Cart Wheel Rims bearings are affected by many factors during long-term use and may be damaged. These damages will not only affect the normal operation of the wheels, but may also have a significant negative impact on the performance and safety of the entire vehicle.

There are many forms of bearing damage, mainly including insufficient surface hardness, overheating, outer ring fracture, angular deviation, slip marks, tight fit, axial cracks, general fatigue, Brinell indentation, contamination, lubricant failure, corrosion, grooves Corrosion, excessive load and rib breakage, etc. For damage to Garden Cart Wheel Rims bearings, here are some detailed solutions:

Insufficient surface hardness
Symptoms appear as oval-shaped wear marks at the location of each ball, with polished surfaces and clear boundaries. The solution is to enhance surface hardness by reducing or absorbing external vibrations and using lubricants containing anti-wear additives.
overheat
The color of the outer ring, rolling elements and cage faded from gold to blue, indicating overheating. To control temperatures and overloads, it is recommended to provide appropriate thermal aisles and cooling measures.
Outer ring broken
Parallel cracks appear along the circumferential direction, usually indicating a fracture in the outer ring. In order to improve the installation quality of the bearing, the supplier's installation instructions must be followed to ensure that the bearing seat has sufficient support for the ferrule.
Angle deviation
On the raceways of non-rotating rings, the wear marks are not unequal to the raceway edges, showing angular deviations. It is recommended to check the shaft, flange swing seat and bearing seat to ensure that the axis is at right angles to the shaft seat and use high-precision locking nuts.
skid marks
Pitting corrosion occurs, and the surface of the rolling elements or raceways is rough. To solve this problem, it is recommended to select bearings with low load capacity, increase bearing preload, reduce bearing clearance, and improve lubrication quality.
tight fit
Severe wear marks on the rolling elements at the bottom of the raceway are usually related to a tight fit. This problem can be effectively alleviated by improving the fit of the bearing with the shaft and bearing seat to reduce the total interference, and increasing the radial clearance in bearing selection.
Axial crack
The inner ring is partially or completely broken in the axial direction, showing symptoms of axial cracks. To improve lubrication, it is recommended to add additives or increase the amount of oil, choose an appropriate fit to avoid friction, and consider special heat treatment of the inner ring.
ordinary fatigue
Fractures of running surfaces, accompanied by the removal of small dispersed particles on the inner ring, outer ring or rolling elements, indicate the occurrence of ordinary fatigue. At this point, it is recommended to replace the bearing and consider redesigning it to use a bearing with a longer calculated fatigue life.
pollute
The rolling elements and raceways are dented, causing vibration. To reduce the risk of contamination, the work environment, tools, equipment and hands should be cleaned, the bearing mounting area should be kept away from any grinding operations, and seals should be used in contaminated work environments.
Lubricant failure
Discoloration (blue/brown) of the rolling elements and raceways indicates lubricant failure. Using the proper and appropriate amount of lubricant, ensuring proper bearing fit, and controlling preload to reduce bearing temperatures are keys to solving this problem.